You're not in trouble. Difficulty in these games are way overblown, and thankfully, BB is the easiest (save for TOH DLC).
It's just all about timing for ripostes and learning when to attack, and when to avoid. Every enemy has a pattern, every enemy has a windup, etc. Trial and error gaming.
Once you get through Bloodborne, I suggest going through the 3 Souls games. Get Demon's on the PS3 first, then play Dark Souls 1 on PC, and 2 on either the PS4, PC or XBO. They all follow Bloodborne's strategy of rolling, riposting, and timing your attacks - though everything is considerably slower.
Fun as hell, but not hard once you get into the swing of things. Just a higher barrier to entry than other modern titles.